Target Voltage Detection Fail Issue

[BRobe.3]

Hello,

I got a stlm32 disco board. I cannot Flash.

So,I used STM32 ST-LINK UTILITY. Any connection fail even under reset. This one show Target Voltage Detection Fail. The board is powered by the USB CN2 Connector. The measurment on the CN4 Connector shows 3,3 v between 1 and 3 pins.( which seems normal)

Could this be a software issue ?

Best regards,

[OB]

Hi BRobe.3. I'm currently experiencing the same issue. Did you find a solution?

[NAN]

Hi folks

I'm struggling with exactly the same failure.

I use a ST link V2 (a genuine one, I must say) day to day to flash STM32 from various board.

And today, this little thing refuse to program ... when I go to "settings" I have "target voltage" detection fail...

I'm sur of the voltage on the Vtarget Pin because I measure it with my DMM, it si 3.3V sharp!

what's wrong?... is smbdy can post ST-Link V2 schematics just to know where this voltage goes?

best regards....

[NAN]

My test pretty simple => a wire between pin 19 to pin 1